Kernel Parameter on AWS EC2

Hi,

I want to enable cgroups for Java memory issues and running multiple judgedaemons in AWS EC2 Ubuntu 14.04 Server instance.

However, I can't add "quiet cgroup_enable=memory swapaccount=1" since AWS EC2 doesn't use grub.

Is there any method to add kernel parameters to AWS EC2 instance?

Thanks, Myungwoo Chun